EXP(2)                                                     EXP(2)

     NAME
          exp, log, log10, pow, pow10, sqrt - exponential, logarithm,
          power, square root

     SYNOPSIS
          #include <u.h>
          #include <libc.h>

          double exp(double x)

          double log(double x)

          double log10(double x)

          double pow(double x, double y)

          double pow10(int n)

          double sqrt(double x)

     DESCRIPTION
          Exp returns the exponential function of x.

          Log returns the natural logarithm of x; log10 returns the
          base 10 logarithm.

          Pow returns x^y, and pow10 returns 10^n as a double.

          Sqrt returns the square root of x.

     SOURCE
          All these routines have portable C implementations in
          /sys/src/libc/port.  Most also have machine-dependent imple-
          mentations, written either in assembler or C, in
          /sys/src/libc/$objtype.

     SEE ALSO
          hypot(2), sinh(2), intro(2)